a recent poll shows a slim majority of americans oppose such a ban, and the nra is ready for battle. >> the likelihood is that they are not going to be able to getan assault weapons ban through this congress. >> reporter: even a democratic senator says it won't happen. >> assault weapons stand -- >> on just guns alone will not in the political reality that we have will not go anywhere. >> reporter: but other provisions may have a chance according to experts. why do hunters need a clip that carries more than ten rounds, and why shouldn't gun buyers at gun shows be required to have their background checked? >> congress surely can and should act to close that loophole and to make more uniform the background check process across all the 50 states. >> reporter: rather than pass laws, one lawmaker is appealing directly to retailers. >> when a mainstream store like walmart says we're not going to do it, it will make people think twice. >> reporter: schumer is hoping these big box stores will not sell assault weapons while congress does debate a potential bill on banning those weapons. as fa